Sentences with phrase «differences in every single gene»

Humans and chimps each have somewhere between 20,000 and 30,000 genes, so there are likely to be nucleotide differences in every single gene.

Not exact matches

The Irish wolfhound stands a metre high and weighs as much as 30 chihuahuas, but the difference in size between the two is due to a single gene, which comes in one form in the large animal and another in the small.

In many cases, the activity of particular genes was tied to a single genetic variant, with strong differences in frequency between European and African populationIn many cases, the activity of particular genes was tied to a single genetic variant, with strong differences in frequency between European and African populationin frequency between European and African populations.

But in genes, differences as small as a point mutation — the alteration of a single base pair — can lead to disease.

They have discovered that a single amino acid difference in the structure of histone H3.3 enables it to serve as a kind of memory device for the cell, marking genes that need to remain active.

The team found that a single polymorphism (a difference in one «letter» of the sequence) in the BDNF gene accounted for significant differences in intelligence among those with similar injuries and comparable intelligence before being injured.

But many researchers, including Keller and Ross, didn't think variations in a single gene could account for all the differences in size, fertility, odor, and aggression that separated the two ant groups.

The authors find that evolved differences in UV absorbance between the species could be explained by changes to a single gene, MYB - FL.

Mutations in the genes SLC24A5 and SLC45A2 are largely responsible for European pigmentation, showing only single amino acid differences between Europeans and West Africans.

No significant differences were seen between the normoxic and hypoxic anoikis - resistant populations collected from MCF7 cells and a single significant gene change (PIP) was seen in T47D (Table 1) suggesting that the CSC - enriched population remains virtually unchanged following hypoxic culture and the increase in MFC, HFC, and tumor initiating cells is, therefore, due to expansion of the population, perhaps by increased symmetric self - renewal of the CSC or de-differentiation of early progenitor cells, rather than simply the acquisition of anoikis resistance in non-CSC.

Genome - wide association studies use «genechip» technology to identify genetic variants (single gene polymorphisms or «SNPs») that could explain differences in health between individuals.